Windows should only load into RAM what you have running as programs and data at the time. Some have claimed in W10 that Microsoft preloads updates and ISO for them to later link other users to download from YOUR computer, using YOUR bandwidth if it's deemed sufficient, and others claim even poor satellite service users. It's called "peer to peer" networking or sharing.
"Windows P2P
Microsoft came up with a great idea for delivering updates in Windows 10: peer-to-peer networking. By default your Windows 10 PC shares system files with other PCs on your home network and across the big, wide Internet, downloading and distributing updates without relying on Microsoft’s servers alone. "
If you are using wifi for connection, set to "metered" and that lets you control when you get updates.
http://www.pcworld.com/article/2975289/windows/how-to-cure-windows-10s-worst-headaches.html
Hi all, have this problem for a while now. Ram usage is extremely high while PC is in idle. 99% ram usage and 70-80% quite often.When i start the computer it's fine and then it starts slowly to increase to as i said 70-80 and finally 99%. Computer doesn't lag or lacks of performance even when 99% of the ram is used ?! If you know how to fix that s..t pls aa and that happens in win 10 and win 7 also